Following are a number of back-translations as well as a sample translation for translators of Ecclesiastes 10:3:

• Kupsabiny: “Even when a stupid person is walking along, it is clear that he is a fool and everybody sees his foolishness.” (Source: Kupsabiny Back Translation)
• Newari: “The Fool goes thoughtlessly down the road
  and all his foolishness can be seen in his words and deeds.” (Source: Newari Back Translation)
• Hiligaynon: “Even the-way- a fool -walks (it is) seen that he has- no -understanding. He truly shows to all his foolishness.” (Source: Hiligaynon Back Translation)
• English: “Even while foolish people walk along the road,
  they show that they do not have good sense;
  they show everyone that they are not wise.” (Source: Translation for Translators)